Re: [linux-usb-devel] speedtouch and/or USB problem (2.6.4-WOLK2.3 and 2.6.5-rc3-mm4)

[Grzegorz Kulewski <kangur@polcom.net>]

On Fri, 2 Apr 2004, Grzegorz Kulewski wrote:

> On Wed, 31 Mar 2004, Marc-Christian Petersen wrote:
> 
> > On Sunday 28 March 2004 00:51, Alan Stern wrote:
> > 
> > Hi Grzegorz,
> > 
> > > > When running modem_run on 2.6.4-WOLK2.3 it locks in D state on one of USB
> > > > ioctls. It works at least on 2.6.2-rc2. I have no idea what causes this
> > > > bug so I sent it to all lists.
> > > > Please help if you can.
> > > > Grzegorz Kulewski
> > 
> > > Try applying this patch:
> > > http://marc.theaimsgroup.com/?l=linux-usb-devel&m=108016447231291&q=raw
> > 
> > Did this help Grzegorz?
> 
> No, it did not. This time I tried 2.6.5-rc3-mm4. Seems the patch was 
> already applied in this release. modem_run did not lock (disk sleep state) 
> in the same place, but it locked after writing synchronization succeded 
> to system log. It seems that there is no kernel-stack-for-process-in-proc 
> option in mm (Andrew, can you add it?), so there is no callstack.

Everything seems to work stable on vanilla 2.6.5 + "few debuging and 
statistic patches that do not touch anything very important", so probably 
on true vanilla 2.6.5 too. So only -mm and wolk are broken?

What do you think about it?


Grzegorz Kulewski